[B! file system] fubar_fooã®ãƒ–ãƒƒã‚¯ãƒžãƒ¼ã‚¯

fubar_foo id:fubar_foo

file systemã«é–¢ã™ã‚‹fubar_fooã®ãƒ–ãƒƒã‚¯ãƒžãƒ¼ã‚¯ (15)

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fubar_foo 2019/05/07
windows

file system
ãƒªãƒ³ã‚¯
Opensource.com
Guilt is usually considered a negative emotion, but by steering it well, you can achieve surprising success.
fubar_foo 2012/04/06
file system

cluster
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åˆ†æ•£ãƒ‡ãƒ¼ã‚¿ãƒ™ãƒ¼ã‚¹ã€ŒHBaseã€ã®å®‰å®šé‹ç”¨ã‚’ç›®æŒ‡ã—ã¦ - Preferred Networks Research & Development
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fubar_foo 2011/05/09
nosql

hadoop

file system
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ãƒ‡ã‚£ãƒ¬ã‚¯ãƒˆãƒªã®ä¸ã«ã‚ã‚‹å¤§é‡ã®å°ã•ãªãƒ•ã‚¡ã‚¤ãƒ«ã‚’é«˜é€Ÿã«èªã¿è¾¼ã‚€æ–¹æ³• - å°„æ’ƒã—ã¤ã¤å‰è»¢ æ”¹
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fubar_foo 2011/01/19
file system

performance
ãƒªãƒ³ã‚¯
Create Turbocharged Storage Using tmpfs | kvz.io
Everyone knows that RAM is so much faster than a hard disk. To illustrate, while a current SATA disk has peak transfer rates of 375 MB/s, current RAM can do a mind blowing 12,500 MB/s! Normally only the system itself makes use of this ultra fast storage, but we can also access this space directly. And that opens a great window of opportunity. Possible Uses There is an unlimited number of uses for
fubar_foo 2011/01/04
file system

performance
ãƒªãƒ³ã‚¯
Ext4, ã¤ã„ã«å®‰å®šç‰ˆãƒªãƒªãƒ¼ã‚¹ at nkjmkzk.net
Oracle, Open Source, Private12/24ã«Linux kernel 2.6.28ãŒãƒªãƒªãƒ¼ã‚¹ã•ã‚Œã¾ã—ãŸã€‚ã“ã®ãƒªãƒªãƒ¼ã‚¹ã®ç›®çŽ‰ã¨ã—ã¦Ext4å®Ÿè£…ãŒã‚ã‚Šã¾ã™ã€‚Ext4ã¯Ext3ã¨äº’æ›æ€§ã‚’ä¿ã¡ãªãŒã‚‰ã‚‚å¤šãã®æ”¹è‰¯ãŒãªã•ã‚ŒãŸã‚‚ã®ã«ãªã£ã¦ã„ã‚‹ã‚ˆã†ã§ã™ã€‚kernelnewbies.orgã«è¨˜è¼‰ã•ã‚Œã¦ã„ã‚‹New featureã‚’æ„è¨³ã—ã¦ã¾ã¨ã‚ã¦ã¿ã¾ã—ãŸã€‚ äº’æ›æ€§ æ—¢å˜ã®Ext3ãƒ•ã‚¡ã‚¤ãƒ«ã‚·ã‚¹ãƒ†ãƒ ã¯Ext4ã«ãƒªãƒ•ã‚©ãƒ¼ãƒžãƒƒãƒˆã™ã‚‹ã“ã¨ãªãç§»è¡Œå¯èƒ½ã€‚å…·ä½“çš„ã«ã¯è©²å½“ãƒœãƒªãƒ¥ãƒ¼ãƒ ã‚’ReadOnlyã§ãƒžã‚¦ãƒ³ãƒˆã—ã¦ã„ãã¤ã‹ã‚³ãƒžãƒ³ãƒ‰å©ãã ã‘ã§OKã€‚ ã‚ˆã‚Šå¤§ããªãƒ•ã‚¡ã‚¤ãƒ«ã‚·ã‚¹ãƒ†ãƒ ã‚µã‚¤ã‚ºã€ãƒ•ã‚¡ã‚¤ãƒ«ã‚µã‚¤ã‚ºã®ã‚µãƒãƒ¼ãƒˆ Ext3ã‹ã‚‰Ext4ã§ã¯ãã‚Œãžã‚Œã®åˆ¶é™ã¯ä»¥ä¸‹ã®é€šã‚Šã€‚ ãƒ•ã‚¡ã‚¤ãƒ«ã‚·ã‚¹ãƒ†ãƒ ã‚µã‚¤ã‚ºï¼š16TB -> 1EB (ã‚¨ã‚¯ã‚µãƒã‚¤ãƒˆï¼‰ ãƒ•ã‚¡ã‚¤ãƒ«ã‚µã‚¤ã‚ºï¼š2TB -> 16TB ã¡ãªã¿ã«EBã¨ã¯ã€Â (1 EB = 10
fubar_foo 2010/11/14
linux

storage

file system
ãƒªãƒ³ã‚¯
Opensource.com
Guilt is usually considered a negative emotion, but by steering it well, you can achieve surprising success.
fubar_foo 2010/06/29
file system

storage

linux

iscsi

redhat
ãƒªãƒ³ã‚¯
Charming Python: Functional programming in Python, Part 3
IBM Developer is your one-stop location for getting hands-on training and learning in-demand skills on relevant techno logies such as generative AI, data science, AI, and open source.
fubar_foo 2010/05/28
file system

storage

nfs

linux
ãƒªãƒ³ã‚¯
Btrfs ä½¿ã£ã¦ã¿ã‚‹ : ãƒ¡ãƒ¢ç”¨ç´™.txt
æ–°ã—ããƒ‡ã‚£ã‚¹ã‚¯è²·ã£ãŸã®ã§ã€ Btrfs ã‚’ä½¿ã£ã¦ã¿ã‚‹ã“ã¨ã«ã™ã‚‹ã€‚ kernel-2.6.33, btrfs-progs ã¯ git ç‰ˆã‚’ä½¿ç”¨ã€‚ ãƒ•ã‚©ãƒ¼ãƒžãƒƒãƒˆ: # mkfs.btrfs -m raid1 -d raid1 /dev/sda ãƒžã‚¦ãƒ³ãƒˆ: # mkdir /pool # mount -t btrfs /dev/sda /pool subvolume ã®ä½œæˆ: # btrfsctl -S home /pool subvolume ã®ãƒžã‚¦ãƒ³ãƒˆ: # mount -t btrfs -o subvol=home /dev/sda /home ãƒ‡ã‚£ã‚¹ã‚¯ã®è¿½åŠ : # btrfs-vol -a /dev/sdb /pool # btrfs-vol -b /pool snapshot ã®ä½œæˆ: # mkdir /pool/home-snap # btrfsctl -s /pool/home-s
fubar_foo 2010/04/15
linux

file system

snapshot
ãƒªãƒ³ã‚¯
RACã‚„ASMãªã©ã«è¦‹ã‚‹è«–ç†å±¤ã®ä»®æƒ³åŒ–â€•Oracle 11g R2ã€ãã®å®ŸåŠ›ã‚’è§£å‰–ã™ã‚‹ Part 3 | IT Leaders
DBã‚’é©æ–°ã•ã›ã‚‹ã€ŒRACã€ã€€ä»®æƒ³åŒ–ãªã©ã«ã‚ˆã‚Šã€æ‹¡å¼µæ€§ã‚„å¯ç”¨æ€§ã‚’é«˜ã‚ã‚‹åŽŸç†ã‚’è©³èª¬ Oracle Databaseã¯DBã‚¨ãƒ³ã‚¸ãƒ³ã¨ã—ã¦ã®æ€§èƒ½å‘ä¸Šã¨ä¸¦è¡Œã—ã¦ã€DBã‚·ã‚¹ãƒ†ãƒ ã¨ã—ã¦ã®æŠ€è¡“ã‚‚å……å®Ÿã•ã›ã¦ããŸã€‚ä¸ã§ã‚‚å¤§ããé€²åŒ–ã—ãŸã®ãŒã€ŒRACã€ã ã€‚ãƒ‘ãƒ¼ãƒˆ3ã§ã¯ãƒ†ã‚¯ãƒŽãƒã‚¸ãƒ¼ã®å´é¢ã‹ã‚‰RACã‚’è§£å‰–ã™ã‚‹ã¨å…±ã«ã€ã‚¹ãƒˆãƒ¬ãƒ¼ã‚¸ã‚’ä»®æƒ³åŒ–ã™ã‚‹ã€ŒASMã€ãªã©ã‚’ç”¨ã„ã¦DBã‚·ã‚¹ãƒ†ãƒ ã®æ‹¡å¼µæ€§ã‚„å¯ç”¨æ€§ã‚’é«˜ã‚ã‚‹ä»•çµ„ã¿ã‚’åˆ†ã‹ã‚Šã‚„ã™ãè§£èª¬ã™ã‚‹ã€‚ å®‰ä¾¡ãªãƒãƒ¼ãƒ‰ã‚¦ã‚§ã‚¢ï¼ˆã‚µãƒ¼ãƒãƒ¼ã€ã‚¹ãƒˆãƒ¬ãƒ¼ã‚¸ï¼‰ã‚’åˆ©ç”¨å¯èƒ½ã«ã—ãªãŒã‚‰ã€æ€§èƒ½ã‚„å¯ç”¨æ€§ã€é‹ç”¨ã®å®¹æ˜“æ€§ã¨ã„ã£ãŸç›¸åã™ã‚‹è¦ä»¶ã‚’æº€è¶³ã•ã›ã‚‹ã€‚Part1ã§ç¤ºã—ãŸé€šã‚Šã€ã“ã‚ŒãŒOracleã€€Database 11g R2ã®æœ€å¤§ã®ç‰¹å¾´ã§ã‚ã‚‹ã€‚ãã‚Œã‚’æ”¯ãˆã‚‹ã®ãŒã€è¤‡æ•°ã®ã‚µãƒ¼ãƒãƒ¼ã‚„ã‚¹ãƒˆãƒ¬ãƒ¼ã‚¸ã‚’ã‚ãŸã‹ã‚‚1ã¤ã®ã‚³ãƒ³ãƒ”ãƒ¥ãƒ¼ã‚¿è³‡æºã§ã‚ã‚‹ã‹ã®ã‚ˆã†ã«ä½¿ãˆã‚‹ã‚ˆã†ã«ã™ã‚‹ã€ŒOracle Real Application Clustersï¼ˆRA
fubar_foo 2010/02/16
oracle

asm

virtualization

file system
ãƒªãƒ³ã‚¯
ZFSã¯RAIDã¨ç›¸æ€§ãŒæ‚ªã„
æ—¥æœ¬æœ€å¼·ã®çœ‹æ¿ã‚’ä¸‹ã‚ã—ãŸãƒŸãƒ©ãƒ¼ã‚µãƒ¼ãƒftp.jaist.ac.jpã®ç®¡ç†è€…ã®ä¸€äººãŒã€ ã“ã®ã‚µãƒ¼ãƒã«ã¾ã¤ã‚ã‚‹ã‚ˆã—ãªã—ã”ã¨ã‚’èªžã‚Šã¾ã™ã€‚ English versions of some posts on another blog. Sun Fire T2000ã«ã¯æœ€åˆã€2Gbpsã®Fibre Channelã«å¯¾å¿œã—ãŸSATAã®ãƒ‡ã‚£ã‚¹ã‚¯ã‚¢ãƒ¬ã‚¤ã‚’2åŸºã¤ãªã„ã§ã„ã¾ã—ãŸã€‚ãã‚Œãžã‚Œ14D+1P+1Sã®RAID 5ã«ã—ã¦ã€2ã¤ã®vdevã§ZFSã®poolã‚’1ã¤ä½œã‚Šã¾ã—ãŸã€‚ã“ã‚Œã¯RAID 5+0ã«ç›¸å½“ã—ã¾ã™ã€‚ ã—ã‹ã—ã€ã“ã®æ§‹æˆã¯ã¾ã£ãŸãæ€§èƒ½ãŒå‡ºã¾ã›ã‚“ã§ã—ãŸã€‚è² è·ãŒã»ã¼100%ã®ã¨ãã«ãƒ‡ã‚£ã‚¹ã‚¯ã‚¢ãƒ¬ã‚¤1åŸºã‚ãŸã‚Šã§ç´„20MB/sã—ã‹å‡ºã¾ã›ã‚“ã€‚1åŸº20MB/sãªã‚‰2åŸºåˆã‚ã›ã¦40MB/sã€ãƒ“ãƒƒãƒˆã«ã™ã‚‹ã¨320Mbpsã€ARCã®åŠ©ã‘ã‚’å€Ÿã‚Šã¦ã‚‚ã€ftp.jaist.ac.jpã®å‡ºåŠ›å¸¯åŸŸã¯450MbpsãŒã„ã„ã¨ã“ã‚ã§ã—ãŸ
fubar_foo 2010/02/16
file system

raid

storage
ãƒªãƒ³ã‚¯
ã‚µãƒ¼ãƒä»®æƒ³åŒ–ç’°å¢ƒã§ã®ãŠè–¦ã‚ã‚¹ãƒˆãƒ¬ãƒ¼ã‚¸æ§‹æˆ at nkjmkzk.net
A Place to discuss Oracle VM, Linux and Other Great Software.ã‚µãƒ¼ãƒä»®æƒ³åŒ–ç’°å¢ƒã§ã¯ã€Œãƒªã‚½ãƒ¼ã‚¹ãƒ—ãƒ¼ãƒ«ã€ã¨ã„ã†æ¦‚å¿µã‚’å®Ÿç¾ã™ã‚‹ãŸã‚ã«å…±æœ‰ã‚¹ãƒˆãƒ¬ãƒ¼ã‚¸æ§‹æˆãŒå¤šãæŽ¡ç”¨ã•ã‚Œã¾ã™ã€‚ã—ã‹ã—ã€ãã‚‚ãã‚‚ç¾åœ¨ã®CPUæ€§èƒ½ã¨DISK I/Oæ€§èƒ½ã‚’é‘‘ã¿ã‚Œã°ã€ãã‚‚ãã‚‚DISK I/Oæ€§èƒ½ã¯CPUæ€§èƒ½ã®é€²åŒ–ã«è¿½ã„ã¤ã„ã¦ãŠã‚‰ãšã€å…±æœ‰ã‚¹ãƒˆãƒ¬ãƒ¼ã‚¸æ§‹æˆã¨ã™ã‚Œã°è¿½ã„æ‰“ã¡ã‚’ã‹ã‘ã‚‹ã‚ˆã†ã«ãã“ãŒãƒœãƒˆãƒ«ãƒãƒƒã‚¯ã¨ãªã‚Šã¾ã™ã€‚å¤šãã®ç’°å¢ƒã§ã¯ã‚µãƒ¼ãƒä»®æƒ³åŒ–ç’°å¢ƒã§ã¯ã€Œå…±æœ‰ã‚¹ãƒˆãƒ¬ãƒ¼ã‚¸åž‹å‰æã€‚ã—ã‹ã—ã“ã‚Œã¾ã§ã®ä½•å€ã‚‚ã®I/Oæ€§èƒ½ãŒå¿…è¦ã€ã¨ã„ã†è¦ä»¶ã«å¯¾å¿œã™ã‚‹ãŸã‚ã€ãƒŸãƒ‰ãƒ«ã€œãƒã‚¤ã‚¨ãƒ³ãƒ‰ã®ã‚¹ãƒˆãƒ¬ãƒ¼ã‚¸è£…ç½®ã‚’æŽ¡ç”¨ã™ã‚‹ã¨ã„ã†é¸æŠžã‚’è¡Œã£ã¦ã„ã¾ã™ã€‚ãã®çµæžœåˆæœŸå°Žå…¥è²»ç”¨ãŒé«˜ä¾¡ãªã®ã¯ã‚‚ã¡ã‚ã‚“ã§ã™ãŒã€ãã®ã‚ã¨ã‚‚èŽ«å¤§ãªä¿å®ˆè²»ã‚’æ”¯æ‰•ã†ã“ã¨ã«ãªã‚Šã¾ã™ã€‚ãã—ã¦æ‹¡å¼µã§ãã‚‹ã‚‚ã®ã®ã€æ‹¡å¼µã™ã‚‹ãŸã‚ã®ãƒ‘ãƒ¼ãƒ„ãŒã¾ãŸé«˜ä¾¡ã€ã¨ã„ã†ã‚¹ãƒ‘ã‚¤ãƒ©ãƒ«ã«é™¥
fubar_foo 2010/02/16
storage

file system

iscsi

virtualization

asm
ãƒªãƒ³ã‚¯
ZFS gets inline dedupe
fubar_foo 2009/11/05
file system

storage
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Linuxãƒ•ã‚¡ã‚¤ãƒ«ã‚·ã‚¹ãƒ†ãƒ ã‚’æœ€é©åŒ–ã™ã‚‹ | OSDN Magazine
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fubar_foo 2009/05/12
linux

file system

performance
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IBM Developer
IBM Developer is your one-stop location for getting hands-on training and learning in-demand skills on relevant techno logies such as generative AI, data science, AI, and open source.
fubar_foo 2009/03/26
linux

file system

server
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